Thanks for all your answers guys! Its now all good....I checked out the RFC
as someone suggested earlier in this group as well.
Thanks!!
----- Original Message -----
From: "Chuck Larrieu"
To:
Sent: Friday, June 01, 2001 12:06 AM
Subject: RE: Weird DHCP/VLAN solution suggestions wanted!! [7:6579]
> A comment or two within:
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
> Jeroen Timmer
> Sent: Thursday, May 31, 2001 2:03 AM
> To: [EMAIL PROTECTED]
> Subject: RE: Weird DHCP/VLAN solution suggestions wanted!! [7:6579]
>
> We have a configuration at our company that has the same configuration as
> you just described.
> But somewhere along the line .. This doesn't seem to work that well.
>
> We got about 4 vlans, all vlan interfaces have an ip helper address to our
> DHCP server. Problem is that 8 out of 10 times, a DHCP client doesn't get
an
> ip address. We used an Windows NT server as DHCP but also Nortel's NetID.
> Both systems give the same problems.
> Some times a user moves from one vlan to the other but gets an ip address
> from the old vlan he was in before he did a DHCP request for his new VLAN.
>
> CL: unfortunately, windoze does not release ip addresses upon shutdown.
> Windows machines tend to retain the ip address acquired as long as the
lease
> time has not expired. And sometimes even longer. I've run into problems
with
> mobile users, who upon returning to the office find themselves using and
ip
> address that has been reassigned. This is a windows problem, a "feature"
if
> you will.
>
> We have been trying to find the solution but didn't succeed sofar, maybe
> somebody had this before and is willing to share it with me.
>
> We use a Cisco cat 6500 to handle to forwarding to the DHCP server and the
> VLAN routing, as access switches we have Cisco cat 3500.
>
> CL: I ask because I do not know: does the "router" function of the 65xx
> actually behave the way it is supposed to?
>
>
> Thnx in advance,
>
> JT
>
> -----Original Message-----
> From: Pawel Sikora [mailto:[EMAIL PROTECTED]]
> Sent: donderdag 31 mei 2001 10:49
> To: [EMAIL PROTECTED]
> Subject: Re: Weird DHCP/VLAN solution suggestions wanted!! [7:6579]
>
>
> ----- Original Message -----
> From: "Sam Deckert"
>
> > The problem is the client wants to use DHCP, so that people in the
> > offices can simply plug in and away they go. But how would you go
> > about implementing a DHCP server in this situation?? In order to
> > allocate an address from the appropriate range, the DHCP server needs
> > to be aware of
> the
> > VLAN that the client DHCP request came from. I have not been able to
> > find
> a
> > DHCP server that has this capability whatsoever. I am sure this has
> > been done before - does anyone know how or have any suggestions??
>
> At the edge of each VLAN, an instance
> of router subinterface is obviously needed.
> You can configure at each subinterface
> ip helper address pointing to a real dhcp
> server located anywhere.
> Router then forwards any dhcp requests
> broadcasted by stations in vlans with
> apopriate subnet info, that dhcp server can
> use a defined scope for each vlan.
> Server than answers with lease data to the
> requestor via directed broadcast.
> (im not sure if such way)
>
> For example NT dhcp server service
> works flawlessy with such topology,
> with many different scopes.
>
> Pawel/
> FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=6685&t=6579
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
